Frequently Asked Questions

Sorting on Calculated fields

Question:

How do you make TClientDataSet sort on lookup or calculated

fields?

Answer:

In the fields editor, when creating a new field to be sorted

on, choose New Field from the context menu and choose

InternalCalc as the field type.  Or if creating TFields in

code, make the TField.FieldKind fkInternalCalc instead of

fkCalc. fkInternalCalc is only available in ClientDataSets.